package com.lab.gulimall.ware.config;


import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.amqp.support.converter.MessageConverter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;


@Configuration
@Component
public class MyRabbitConfig {
    @Autowired
    private RabbitTemplate rabbitTemplate;


   /**
           * 定制RabbitTemplate
     * 1、服务收到消息就会回调
     *      1、spring.rabbitmq.publisher-confirms: true
            *      2、设置确认回调
     * 2、消息正确抵达队列就会进行回调
     *      1、spring.rabbitmq.publisher-returns: true
            *         spring.rabbitmq.template.mandatory: true
            *      2、设置确认回调ReturnCallback
     *
             * 3、消费端确认(保证每个消息都被正确消费，此时才可以broker删除这个消息)
     *
    * */
   @PostConstruct
   public void initRabbitTemplate() {

       /**
        * 1、只要消息抵达Broker就ack=true
        * correlationData：当前消息的唯一关联数据(这个是消息的唯一id)
        * ack：消息是否成功收到
        * cause：失败的原因
        */
//       //设置确认回调
//       rabbitTemplate.setConfirmCallback((correlationData,ack,cause) -> {
//           System.out.println("confirm...correlationData["+correlationData+"]==>ack:["+ack+"]==>cause:["+cause+"]");
//       });
       rabbitTemplate.setConfirmCallback(new RabbitTemplate.ConfirmCallback() {

           @Override
           public void confirm(CorrelationData correlationData, boolean ack, String cause) {
               System.out.println("confirm...correlationData[" + correlationData + "]==>ack:[" + ack + "]==>cause:[" + cause + "]");
           }
       });

       /**
        * 只要消息没有投递给指定的队列，就触发这个失败回调
        * message：投递失败的消息详细信息
        * replyCode：回复的状态码
        * replyText：回复的文本内容
        * exchange：当时这个消息发给哪个交换机
        * routingKey：当时这个消息用哪个路邮键
        */
       rabbitTemplate.setReturnCallback((message,replyCode,replyText,exchange,routingKey) -> {
           System.out.println("Fail Message["+message+"]==>replyCode["+replyCode+"]" +
                   "==>replyText["+replyText+"]==>exchange["+exchange+"]==>routingKey["+routingKey+"]");
       });
   }

}
